<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Map</title>
    <link rel="stylesheet" type="text/css" href="../theme/ol.css">
    <style>
      body {
        margin: 0;
      }
      .map {
        height: 100%;
      }
      .map.unusable .ol-mask {
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        user-select: none;
        background-color: rgba(0, 0, 0, .7);
        color: white;
        font: bold 3rem 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      }
      .map.unusable .ol-control {
        display: none;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
  </body>
</html>
